电商工作代码

from selenium import webdriver
from scrapy.selector import Selector
import  time
import random
import pymysql
from urllib import parse
import re
import  os


class spider(object):

    def chul3(self,dates):
        a = Selector(text=dates)
        next_url = a.xpath('//*[@id="J_ShopSearchResult"]/div/div[2]/div[10]/a[11]/@href').extract_first("")
        return 'https:'+next_url
chuli=spider()

conection = pymysql.connect(host='localhost',user='root',password='123',db='7.25',charset='utf8mb4',cursorclass=pymysql.cursors.DictCursor)
with conection.cursor() as cursor:
    sql1 = "select * from 商品id"
    cursor.execute(sql1)
    shop_id = cursor.fetchall()
    shop_oldid=[i['id'] for i in shop_id]
    sql1 = '''
    SELECT
`商品id`.id,
`上架时间`,'1天销量' as 日期
FROM
`商品id` WHERE  TIMESTAMPDIFF(DAY,`上架时间`,CURDATE())   =1 union  SELECT
`商品id`.id,
`上架时间`,'7天销量' as 日期
FROM
`商品id` WHERE  TIMESTAMPDIFF(DAY,`上架时间`,CURDATE())   =7
union  SELECT
`商品id`.id,
`上架时间`,'30天销量' as 日期
FROM
`商品id` WHERE  TIMESTAMPDIFF(DAY,`上架时间`,CURDATE())   =30'''
    cursor.execute(sql1)
    shop_id = cursor.fetchall()
    shop_olxx = [i for i in shop_id]
conection.commit()
cursor =conection.cursor()
webdriver = webdriver.Ie()
url = 'https://login.taobao.com/member/login.jhtml?spm=a21bo.50862.754894437.1.5dcec6f76Oq9Wh&f=top&redirectURL=https%3A%2F%2Fwww.taobao.com%2F%3Fspm%3Da1z10.1-c-s.1581860521.1.559a715a3EnsHq'
webdriver.get(url)
time.sleep(20)
def lll(url):
    webdriver.implicitly_wait(200)
    webdriver.get(url)
    myDynamicElement = webdriver.find_element_by_class_name('pagination')
    a=webdriver.page_source
    time.sleep(random.randrange(2,6))
    selects=Selector(text=a)
    for i in selects.xpath('//*[@id="J_ShopSearchResult"]/div/div[2]/div/dl'):
        bd_pig = i.xpath("./dt/a/img/@src").re('(.*)_')
        bd_name = ''.join(re.findall('[u4e00-u9fa5]', i.xpath('./dd[1]/a/text()').extract_first('')))
        bd_id = ''.join(re.findall('d', i.xpath('./dd[1]/a/@href').extract_first('')))
        bd_much = i.xpath('./dd[1]/div/div[1]/span[2]/text()').extract_first('')
        bd_idlian='http://item.taobao.com/item.htm?id='+bd_id
        bd_liang = i.xpath('./dd[1]/div/div[last()]/span[last()]/text()').extract_first('')
        if  bd_id not in shop_oldid:
            sql = "INSERT INTO 商品id (`品牌`, `id`,图片链接,价格,标题,商品地址) VALUES (%s,%s,%s,%s,%s,%s)"
            cursor.execute(sql,
                           (shop.split(",")[0], bd_id, bd_pig, bd_much, bd_name,bd_idlian))
            conection.commit()
            webdriver.implicitly_wait(200)
            webdriver.get('http://item.taobao.com/item.htm?id='+bd_id)
            myDynamicElement = webdriver.find_element_by_class_name('tb-price-spec')
            time.sleep(random.randrange(2, 6))
            date=webdriver.page_source
            select_xixi = Selector(text=date)
            liem = select_xixi.xpath('//*[@id="J_TMySize"]/@data-value').extract_first("")
            pinjia=select_xixi.xpath('//*[@id="J_RateCounter"]/text()').extract_first("")
            if  int(pinjia) == 0 :
                time_id=select_xixi.xpath('//script').extract()
                a = [i for i in time_id if len(str(i)) > 1000]
                new_time = re.findall(r".*dbst:(.d*)", str(a[0]).replace(" ", ""))[0][0:10]
                timeTuple = time.strftime("%Y-%m-%d", time.localtime(int(new_time)))
                sql = 'update  `商品id`  set  `商品id`.`类目` = %s, `商品id`.`上架时间` = %s  where id = %s'
                cursor.execute(sql,
                               (liem, timeTuple, bd_id))
                conection.commit()
                title = path + '\' + shop.split(",")[0] + '\' + re.sub("W", "", webdriver.title + bd_id)
                capture(webdriver, title + '.jpg')
            else:
                sql = 'update  `商品id`  set  `商品id`.`类目` = %s where id = %s'
                cursor.execute(sql,
                               (liem, bd_id))
                conection.commit()

            c=1
            ee=1
            for i in select_xixi.xpath('//*[@id="J_isku"]/div/dl'):
                b = i.xpath('./dt/text()').extract_first("")
                if '尺码' in b:
                    aa = i.xpath('./dd/ul/li/a/span/text()').extract()
                    ee = len(aa)
                    dd = ' '.join(aa)
                    sql = 'update  `商品id`  set  `商品id`.`尺码` = %s  where id = %s'
                    cursor.execute(sql,
                                   (dd, bd_id))
                    conection.commit()
                if '颜色' in b:
                    a = i.xpath('./dd/ul/li/a/span/text()').extract()
                    c = len(a)
                    d = ' '.join(a)
                    sql = 'update  `商品id`  set  `商品id`.`颜色` = %s  where id = %s'
                    cursor.execute(sql,
                                   (d, bd_id))
                    conection.commit()
            w = c * ee
            sql= 'update  `商品id`  set  `商品id`.`sku量` = %s  where id = %s'
            cursor.execute(sql,
                           (w,bd_id))
            conection.commit()





        for i in shop_olxx:
            if i['id'] == bd_id:
                sql = "UPDATE 商品id set " + i['日期'] + " =  (%s) where id = %s"
                cursor.execute(sql,
                               (bd_liang, i['id']))
                conection.commit()
    if  selects.xpath('//*[@id="J_ShopSearchResult"]/div/div[2]/div[last()]/a[last()]/@href').extract_first(""):
        lll('https:'+selects.xpath('//*[@id="J_ShopSearchResult"]/div/div[2]/div[last()]/a[last()]/@href').extract_first(""))


path=os.getcwd()


def capture(webder, save_fn="capture.png"):
    # browser = webdriver.Ie()  # Get local session of firefox

    # browser.get(url)  # Load page
    webder.execute_script("""
               (function () {
                 var y = 0;
                 var step = 100;
                 window.scroll(0, 0);

                 function f() {
                   if (y < document.body.scrollHeight) {
                     y += step;
                     window.scroll(0, y);
                     setTimeout(f, 50);
                   } else {
                     window.scroll(0, 0);
                     document.title += "scroll-done";
                   }
                 }

                 setTimeout(f, 1000);
               })();
             """)

    for i in range(30):
        if "scroll-done" in webder.title:
            break
        time.sleep(1)

    webder.save_screenshot(save_fn)
with open(os.getcwd() + r'1.csv', 'r') as c:
    for shop in c.readlines():
        url = shop.split(",")[2]
        lll(url)